Hallo Clive,QCAD seems to be adequate for my hobby laser cutting tasks. But compatibility is an issue because it would be convenient to edit elder dwgs generatetd by AI. I was happy with AI but recently the laser cutter can't open some of my dwg files. As my very first contact with QCAD (simple circle transforms to a plum) is so confusing I doubt if it is worth the effort to familiarize myself with it.Kind regards helmut2